An orchestra consists of four sections of musical instruments depending on how they are played, these are String Instruments,Keyboard Instruments, Woodwind Instruments, Brass Instruments, Percussion Instruments.

String instruments are musical instruments that produce sound from vibrating strings. In the Hornbostel-Sachs scheme of musical instrument classification, used in organology, they are called chordophones. The most common instruments in the string family are

A percussion instrument is a musical instrument that is sounded by being struck or scraped by a beater (including attached or enclosed beaters or rattles), or struck, scraped or rubbed by hand, or struck against another similar instrument. The percussion family is believed to include the oldest musical instruments.

A keyboard instrument is a musical instrument which is played using a musical keyboard. The most common of these is the piano. Other widely used keyboard instruments include organs of various types as well as other mechanical, electromechanical and electronic instruments. In common language, it is mostly used to refer to keyboard-style synthesizers.

A woodwind instrument is a musical instrument that produces sound when the player blows air against a sharp edge or through a reed, causing the air within its resonator (usually a column of air) to vibrate. Most of these instruments are made of wood but can be made of other materials, such as metals or plastics.

A brass instrument is a musical instrument that produces sound by sympathetic vibration of air in a tubular resonator in sympathy with the vibration of the player's lips. Brass instruments are also called labrosones, literally meaning "lip-vibrated instruments".